a vertical rod of lenght l is moved with constant velocity v towards east. the vertical components of earth magnetic field is B and angle of dip is 'x'. the induced e.m.f. in rod is

1) Blvsinx

2) Blvtanx

3) Blv cotx

4) Blv cosx

Induced emf is given bye=B'lvVertical component of magnetic field B'=Bsin x=Bsin x l v cos x=Blvcotx

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